A two-loop apparatus and method for satellite attitude control Tracking

A two-loop tracking satellite attitude control device and method for closed loop attitude control means comprising inner and outer loop circuit comprising; the inner ring includes an inner loop controller connected in sequence structure of the filter module, and the gyro sensitivity delay module ; said outer ring comprises an outer loop controller sequentially connected, the inner controller, the module structure of the filter, a delay module, the integrator module and the star sensor; wherein said inner inner control circuit, the structure filtering module and a delay circuit module is shared with the outer ring, the outer loop bandwidth is smaller than the inner loop; satellite attitude rate deviation by eliminating the inner loop, the angle deviation by eliminating satellite attitude control system outer loop and stability. The present invention is based on controlling the structure of the inner and outer rings of a bicyclic posture, elimination of satellite attitude rate deviation inner, outer and eliminate angular deviation of attitude to ensure the stability of the system, while solving the steady-state control precision and high-precision attitude tracking control.